where again \(m_i\)  are unknown coefficients which also possess a \(1/N_c\)  expansion starting at order 1. Under the assumption of \(SU(3)\)  symmetry, the unknown coefficients \(m_i\)  are independent of \(k\)  so they are unrelated to \(a_1\) , \(b_2\) , \(b_3\) , or \(c_3\)  [1]}.
